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32 papers · 2 filters
Local suppression of the hidden order phase by impurities in URu2Si2
Maria E. Pezzoli, Matthias J. Graf, Kristjan Haule +2
We consider the effects of impurities on the enigmatic hidden order (HO) state of the heavy-fermion material URu2Si2. In particular, we focus on local effects of Rh impurities as a…
Magnetic field induced quantum phase transitions in the two-impurity Anderson model
Lijun Zhu, Jian-Xin Zhu
In the two-impurity Anderson model, the inter-impurity spin exchange interaction favors a spin singlet state between two impurities leading to the breakdown of the Kondo effect. We…
Anisotropic spin fluctuations and superconductivity in "115'' heavy fermion compounds: 59Co NMR study in PuCoGa5
S. -H. Baek, H. Sakai, E. D. Bauer +4
We report results of Co nuclear magnetic resonance measurements on a single crystal of superconducting PuCoGa5 in its normal state. The nuclear spin-lattice relaxation rates…
Hybridization wave as the 'Hidden Order' in URuSi
Y. Dubi, Alexander V. Balatsky
A phenomenological model for the 'hidden order' transition in the heavy Fermion material URuSi is introduced. The 'hidden order' is identified as an incommensurate, momentu…
Thermal and magnetic properties of a low-temperature antiferromagnet CePtSn
Nobuyuki Kurita, Han-Oh Lee, Yoshi Tokiwa +10
We report specific heat () and magnetization () of single crystalline CePtSn at temperature down to 50mK and in fields up to 3T. exhibits a shar…
Entropy accumulation near quantum critical points: effects beyond hyperscaling
Jianda Wu, Lijun Zhu, Qimiao Si
Entropy accumulation near a quantum critical point was expected based on general scaling arguments, and has recently been explicitly observed. We explore this issue further in two…